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Chicago, IL - NUM Corporation is celebrating 22 highly successful years of operation in the USA. This press release highlights three recent build-ins in the North American market.
Bourn & Koch Machine Tool Company:
One of NUM Corporation's very first customers, the Bourn & Koch Machine Tool Company is nowadays a highly valued business partner. Based in Rockford, Illinois, Bourn & Koch operates a large, 12,000 m2 (130,000 square feet) purpose-built manufacturing facility, where it produces an extensive range of precision machine tool products. The company also rebuilds and remanufactures legacy machines, retrofitting many of them with NUM CNC systems to improve their performance.
According to Loyd Koch, Vice President of Bourn & Koch, "We have been utilizing NUM controls in our products for over 20 years. The initial driving force was that NUM produced the only control system with an integral electronic gearbox that met our requirements for gear hobbing and grinding. Over the years, this usage has expanded to other parts of our business - including turning, milling, boring and grinding machines - due to the cost, support and complete product solutions offered by NUM Corporation."
Bourn & Koch's latest gear manufacturing machine - the 400H Series II horizontal gear hobber - is a highly advanced seven-axis CNC system capable of exceptionally high throughput. As standard, the machine is equipped with NUM's Axium Power CNC system and FS151iCF control panel - which features an integrated industrial PC - and makes extensive use of NUMDrive C compact servo drives and BPH series brushless axis motors with absolute feedback.
The supplied NUMgear software features a multilingual user interface, which provides Bourn & Koch with a significant competitive advantage for machines that are exported to other countries, and includes the NUMPass and PCProCAM packages for gear hobbing. Custom hobbing screens enable multiple hobs to be used to produce cluster gears within the single setup; the CNC hob-shifting macros simply shifts from one tool to the next, while maintaining synchronization to the gear to allow for tooth line-up.
The 400H series gear hobber can accommodate a work diameter of up to 400 mm (16 in) and features a unique CNC servo-driven tailstock. The tailstock can be programmed to have two pressures for each cycle; a high pressure is used initially, to embed the face drivers into the part, and then a lower pressure is used during the actual cutting operation, to prevent the drivers from going deeper into the part and causing a small amount of rotation that would show up as lead error when the gear is inspected. The NUM digital drive interface enables the tailstock motor's torque output to be adjusted on-the-fly, to provide programmable set points for the tailstock pressure.
Anderson-Cook Machine Tool:
Anderson-Cook Machine Tool is the world's leading manufacturer of spline-rolling machines and associated tools. Based in Fraser, Michigan, this company is a relatively new account for NUM Corporation, having first approached us in March 2009 for a CNC system for an innovative 3-axis precision grinding machine that it was developing. The machine was launched just three months later, and is already enjoying considerable market success.
Anderson-Cook's new TruGrind precision grinding machine is capable of form grinding, plunge grinding and in-feed grinding, and features a built-in acoustic system for polishing to a high micro using carbide or steel. The machine incorporates a novel
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| F697 KOYO | 7 | 17 | 5 |
| F687 KOYO | 7 | 14 | 3.5 |